Finding the Fourth Proportional to 155,515,307.66, 214,607,013.86 and 85,899,193.88
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Solution
The fourth proportional to 155,515,307.66, 214,607,013.86 and 85,899,193.88 is: 118,538,616.99
Step by Step Solution
- Step 1: Write the proportion equation
155,515,307.66 : 214,607,013.86 = 85,899,193.88 : x - Step 2: Convert to fraction form
155,515,307.66/214,607,013.86 = 85,899,193.88/x - Step 3: Cross multiply
155,515,307.66x = 214,607,013.86 × 85,899,193.88 - Step 4: Simplify right side
155,515,307.66x = 18,434,569,491,567,988 - Step 5: Solve for x
x = 18,434,569,491,567,988/155,515,307.66 - Step 6: Final answer
x = 118,538,616.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.